Electrochemical Performances of Li4Ti5-xAlxO12 (x=0.03, 0.05, 0.10) as Anode Materials for Lithium Ion Battery

Fang Gu

doi:10.4028/www.scientific.net/AMR.750-752.1791

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Electrochemical Performances of Li4Ti5-xAlxO12...

Electrochemical Performances of Li₄Ti_5-xAl_xO₁₂(x=0.03, 0.05, 0.10) as Anode Materials for Lithium Ion Battery

Abstract:

Li₄Ti_5-xAl_xO₁₂(x=0.03, 0.05, 0.10) were prepared by a solution method. The electrochemical performances including charge-discharge and AC impedance were investigated. The structure of the samples were characterized by X-ray diffraction. The results revealed that proper Al doped into Li₄Ti₅O₁₂ would not change or destroy the crystal structure. Li₄Ti_5-xAl_xO₁₂(x=0.03, 0.05) had better capacity than Li₄Ti₅O₁₂, because of the decrease of electric resistance. But when the quality percent of Al was too big, it will bring negative influence to Li₄Ti₅O₁₂. Al³⁺ doping did not change the electrochemical process, instead enhanced the electronic conductivity and ionic conductivity. The reversible capacity and cycling performance were effectively improved.

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Advanced Materials Research (Volumes 750-752)

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1791-1794

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https://doi.org/10.4028/www.scientific.net/AMR.750-752.1791

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August 2013

Authors:

Fang Gu

Keywords:

Anode Material, Electrochemical Performance, Li₄Ti_5-xAl_xO₁₂, Lithium-Ion Battery

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